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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
*/
package com.itextpdf.layout.borders;
import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
/**
* Draws a border with dashes around the element it's been set to.
*/
public class DashedBorder extends Border {
/**
* The modifier to be applied on the width to have the dash size
*/
private static final float DASH_MODIFIER = 5f;
/**
* The modifier to be applied on the width to have the initial gap size
*/
private static final float GAP_MODIFIER = 3.5f;
/**
* Creates a DashedBorder with the specified width and sets the color to black.
*
* @param width width of the border
*/
public DashedBorder(float width) {
super(width);
}
/**
* Creates a DashedBorder with the specified width and the specified color.
*
* @param color color of the border
* @param width width of the border
*/
public DashedBorder(Color color, float width) {
super(color, width);
}
/**
* Creates a DashedBorder with the specified width, color and opacity.
*
* @param color color of the border
* @param width width of the border
* @param opacity width of the border
*/
public DashedBorder(Color color, float width, float opacity) {
super(color, width, opacity);
}
/**
* {@inheritDoc}
*/
@Override
public int getType() {
return Border.DASHED;
}
/**
* {@inheritDoc}
*/
@Override
public void draw(PdfCanvas canvas, float x1, float y1, float x2, float y2, Side defaultSide,
float borderWidthBefore, float borderWidthAfter) {
float initialGap = width * GAP_MODIFIER;
float dash = width * DASH_MODIFIER;
float dx = x2 - x1;
float dy = y2 - y1;
double borderLength = Math.sqrt(dx * dx + dy * dy);
float adjustedGap = super.getDotsGap(borderLength, initialGap + dash);
if (adjustedGap > dash) {
adjustedGap -= dash;
}
new FixedDashedBorder(getColor(), width, getOpacity(), dash, adjustedGap, dash + adjustedGap / 2)
.draw(canvas, x1, y1, x2, y2, defaultSide, borderWidthBefore, borderWidthAfter);
}
@Override
public void draw(PdfCanvas canvas, float x1, float y1, float x2, float y2, float horizontalRadius1,
float verticalRadius1, float horizontalRadius2, float verticalRadius2, Side defaultSide,
float borderWidthBefore, float borderWidthAfter) {
float initialGap = width * GAP_MODIFIER;
float dash = width * DASH_MODIFIER;
float dx = x2 - x1;
float dy = y2 - y1;
double borderLength = Math.sqrt(dx * dx + dy * dy);
float adjustedGap = super.getDotsGap(borderLength, initialGap + dash);
if (adjustedGap > dash) {
adjustedGap -= dash;
}
new FixedDashedBorder(getColor(), width, getOpacity(), dash, adjustedGap, dash + adjustedGap / 2)
.draw(canvas, x1, y1, x2, y2, horizontalRadius1, verticalRadius1, horizontalRadius2, verticalRadius2,
defaultSide, borderWidthBefore, borderWidthAfter);
}
/**
* {@inheritDoc}
*/
@Override
public void drawCellBorder(PdfCanvas canvas, float x1, float y1, float x2, float y2, Side defaultSide) {
float initialGap = width * GAP_MODIFIER;
float dash = width * DASH_MODIFIER;
float dx = x2 - x1;
float dy = y2 - y1;
double borderLength = Math.sqrt(dx * dx + dy * dy);
float adjustedGap = super.getDotsGap(borderLength, initialGap + dash);
if (adjustedGap > dash) {
adjustedGap -= dash;
}
new FixedDashedBorder(getColor(), width, getOpacity(), dash, adjustedGap, dash + adjustedGap / 2)
.drawCellBorder(canvas, x1, y1, x2, y2, defaultSide);
}
}
